Downloading MasterBox 4.0.0.1 from our website was free. The default filenames for the program's installer are mtk.exe or spd.exe etc. The actual developer of the free program is MasterBox. The following versions: 4.0, 3.0 and 1.0 were the most frequently downloaded ones by the program users. This free PC software is developed for Windows XP/Vista/7/8/10/11 environment, 32-bit version. The program is categorized as System Utilities.
From the developer:
MasterBox is a tool which helps you program a lot of phones. The pack contains a few utilities that are used for phone unlocking, branding and firmware unlocking and upgrading as well. The pack is freeware and can be used for all kinds of phones. The software is compatible with major windows versions.
You may want to check out more software, such as SmartWi Toolbox, which might be related to MasterBox.